MuseHiFi M3 Ultra Vacuum Tube DAC Amp 4.4mm Output

The MuseHiFi M3 Ultra is a portable vacuum tube DAC amp that pairs dual JAN6418 tubes with an ESS ES9028Q2M DAC. It lets you add warm tube character and high-resolution decoding to your phone, tablet or computer in a pocket-sized unit.

This MuseHiFi DAC amp offers both 3.5mm single-ended and 4.4mm balanced outputs, with up to 480mW at 32Ω on the balanced output. It suits desk listening, commuting and travel, wherever you want better sound than a built-in headphone jack can offer.

At approximately 55g, the M3 Ultra is light enough to carry daily, so a tube-based listening setup does not have to stay at home.

Key Features

• Dual JAN6418 Vacuum Tubes: Two miniature tubes provide the distinctive character of tube-based amplification, giving you a different sound signature from a typical solid-state dongle.
• ESS ES9028Q2M DAC: High-performance digital-to-analog conversion supports detailed high-resolution playback, so you can hear more of your music.
• Dedicated ES9603Q Amplifier: Integrated headphone amplification designed to complement the DAC circuitry, helping drive your IEMs and headphones.
• SA9137L USB Interface: Dedicated USB audio processing for compatible digital source devices, so connection is simple.
• Fully Balanced Circuit Design: Multi-stage analog processing with LPF voltage amplification and enhanced current amplification supports a refined, controlled sound.
• 3.5mm and 4.4mm Outputs: Supports both single-ended and balanced headphone connections, so you can use the cables and headphones you already own or upgrade later.
• Up to 480mW Output: Rated balanced output power of up to 480mW at 32Ω gives you headroom for a wide range of IEMs and headphones.
• High-Resolution Audio: Supports PCM up to 32-bit/384kHz and native DSD256 decoding, so you can play high-resolution files in their native format.
• Triple Anti-Vibration Technology: Combines circuit-level, algorithm-level and physical damping measures to reduce tube microphonics, which helps keep playback clean.
• World Gate Hollow Design: An open structure showcases the vacuum tubes and supports heat dissipation, adding visual appeal along with practical cooling.
• Independent Volume Control: Lets you adjust listening levels directly on the device for convenient control.
• Compact and Lightweight: Approximately 55g construction makes it easy to carry in a pocket or bag.

Why Choose the MuseHiFi M3 Ultra Vacuum Tube DAC Amp

If you want tube character in a portable format, this vacuum tube DAC amp is a practical choice. The dual JAN6418 tubes and the ES9028Q2M DAC work together in a fully balanced design, with measured figures of 121dB signal-to-noise ratio and 0.0003% THD+N.

The 4.4mm balanced output delivers up to 480mW at 32Ω, while the 3.5mm output delivers 460mW at 32Ω. That flexibility suits both everyday IEMs and more demanding headphones.

It also works across Android, Apple, Windows and macOS devices. For anyone searching for a quality MuseHiFi DAC to improve phone or laptop audio, the M3 Ultra is worth considering.

Technical Specifications